tester

Both are sold!! I've got a couple Neptune Tridents we're no longer using if anyone's interested. Asking $325 a piece for them.

GHL PROFILUX mini Wi-Fi, used for 6 months then upgraded to hydros. Everything is in working order. $150

Opened, used once or twice, basically new. $35 shipped from upstate NY.

Hello, I have for sale a trident comes with reagents. Asking $430 shipped through FedEx express.

Selling various test kits and Hanna testers. Refractometer with LED light and calibration solution $25 Copper high range Hanna tester with 50+ reagents $50 Alkalinity checker HI772 Hanna tester with extra reagent $50 PH tester HI780 Hanna tester $40 Calcium tester HI758 Hanna tester with extra...

Hi, I'm still a beginner in this hobby and I have a 20 gallon AIO tank with 2 clowns, a turbo snail and a frag of GSP. For the whole time (around 2 months) I've had this tank, I just did weekly water changes and thats all. I only have a portable refractometer, Salifert Ammonia tester and a...

One never used Hanna Phosphate Checker (HI713) and 50 tests. $25 plus whatever shipping method you prefer unless Boston area handoff. One barely used Hanna ULR Phosphate Checker (HI774) and 50 tests. $40 plus whatever shipping method you prefer unless Boston area handoff. Payment by Venmo...

How come I test calcium using API and get 390 and then when i tested calcium with Hanna Tester it says 550? I’ve read the manual a million times and watched videos on how to use the Hannah tester so I’m confident I’m using it correctly. Any help/ideas?

I have a spare Hannah Calcium tester I’m looking to trade for a Hannah Nitrate tester. If you have one to trade or sell; hit me up. Thanks.

IT's finally over. 6 months of hard work is coming to the End Game. (Working Alk Monitor) A crazy idea I came up with, actually works. All started because I couldn't get a Apex Trident (none available), nor or was I will to shell out the money (and throw out two perfectly working two Apex...

Question: If you own a Trident, do you still perform manual tests with the test kits that you used prior to acquiring a Trident, such as Salifert, Hanna, Red Sea, et al. Why do you, or do you not, perform manual tests? I tried searching for threads that involve discussions about whether Trident...

hey guys, so im planning of setting up a QT tank and trying the Hypo salinity method of killing ich supposedly its the easiest yet the safest way without using copper.... well i have a refactometer that i purchased from petco a year ago and ive been using it to measure my salinity in my current...